Dave Wigley’s Wyvern has a 100cc gas engine and it turns a 3-blade prop. There is a dummy scale (non-powered) second counter-rotating set of props mounted in front of the powered set and it sounds like an amazing warbird when it flies by! Awesome Dave!!! The torpedo drop is cool too!

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About the author

Senior Technical Editor About Me: I have a lifelong passion for all things scale, and I love to design, build and fly scale RC airplanes. With 20 plus years as part of the Air Age family of magazines, I love producing Model Airplane News and Electric Flight.